• 
  Samuel Fuller

  regizor

• 
  Samuel Fuller

  scenarist

• 
  Burt Reynolds

  Caine
• 
  Arthur Kennedy

  Doc
• 
  Silvia Pinal

  Anna
• 
  José Chávez

  Lieutenant
• 
  Barry Sullivan

  Professor Dan Mallare
• 
  Manuel Alvarado

  Latalla

• 
  Carlos Barry

  Runt
• 
  Enrique Lucero

  Inspector Barok
• 
  Francisco Reiguera

  Yusef (as Francisco Reyguera)